Table 4.

Univariate and multivariate analyses to determine the risk factor for ESCC recurrence

	Recurrence-free survival
	Univariate	Multivariate
Characteristic	p value	HR (95 % CI)	p value
Positive CXCL12 expression (+/−)	0.021	5.12 (1.54–17.01)	0.008
Positive CXCR4 expression (+/−)	0.97
pT (≥pT3 vs < pT3)	0.10
Lymph node metastasis (+/−)	0.005
Lymphatic invasion (+/−)	0.002	1.84 (1.24–2.72)	0.002
Vessel invasion (+/−)	0.004	2.13 (1.03–4.39)	0.04

HR hazard ratio, CI confidence interval